3861000694980 has 768 divisors, whose sum is σ = 14959794769920. Its totient is φ = 812215296000.

The previous prime is 3861000694961. The next prime is 3861000695003. The reversal of 3861000694980 is 894960001683.

3861000694980 is a `hidden beast` number, since 3 + 86 + 10 + 0 + 0 + 69 + 498 + 0 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

3861000694980 is a modest number, since divided by 694980 gives 386100 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 1904784727 + ... + 1904786753.

It is an arithmetic number, because the mean of its divisors is an integer number (19478899440).

Almost surely, 2^{3861000694980} is an apocalyptic number.

3861000694980 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3861000694980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7479897384960).

3861000694980 is an abundant number, since it is smaller than the sum of its proper divisors (11098794074940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3861000694980 is a wasteful number, since it uses less digits than its factorization.

3861000694980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3537 (or 3529 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 3861000694980 in words is "three trillion, eight hundred sixty-one billion, six hundred ninety-four thousand, nine hundred eighty".